Tornados and Hurricanes in Planet Formation
Tornados and Hurricanes in Planet Formation
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行星形成过程中的龙卷风和飓风
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
P. Bodenheimer
中科院分区：
文献类型：
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作者：
H. Klahr;P. Bodenheimer
我们研究了一个巨大的气体行星的核心吸积气体捕获过程的形成，与数值模拟，假设行星的核心形成的反气旋涡旋的中心。漩涡的存在集中了周围圆盘中厘米到米大小的颗粒，并加速了核心形成过程。假设一颗木星质量的行星在距离星星5 Au处形成，涡旋增强导致形成时间比标准核心吸积气体捕获模拟中发现的要短得多。此外，在质量与最小质量太阳星云（MMSN）相当的盘中也可能形成气体巨星。
We study the formation of a giant gas planet by the core–accretion gas–capture process, with numerical simulations, under the assumption that the planetary core forms in the center of an anti-cyclonic vortex. The presence of the vortex concentrates particles of centimeter to meter size from the surrounding disk, and speeds up the core formation process. Assuming that a planet of Jupiter mass is forming at 5 AU from the star, the vortex enhancement results in considerably shorter formation times than are found in standard core–accretion gas–capture simulations. Also, formation of a gas giant is possible in a disk with mass comparable to that of the minimum mass solar nebula (MMSN).